@inproceedings{sgem2013s20052,
  title = {ENVIRONMENTAL IMPACT OF A LARGE-SCALE MANGANESE MINING ACTIVITY IN DRAMA DISTRICT, MACEDONIA, NORTHERN GREECE},
  author = {M. Sc. E. Sofianska and essor Dr. K. Michailidis},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION},
  year = {2013},
  pages = {393 - 400 pp},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2013/be5.v1/s20.052}
}